Cycle Zero : reincarnated as the Demon King, Now What?

The Bruised Sky

Before the war, Malgorath was not a wound in the world. It was a realm like any other, its sky the color of a fading bruise, its ground paved in black glass that rang like struck bells under the footsteps of demons who called it home. At its heart stood the Cinder Throne, carved from a single fallen star, and upon it sat King Diablo, the last of the old blood, ruler of a people who had never once crossed into the human lands with intent to conquer.

That is the part the histories forget. Or perhaps the part they buried on purpose.

The war did not begin with an army. It began with a man named Corvain Ashworth, a human royal advisor whose ambitions outgrew his station. Corvain had discovered a pact scrawled in the founding scrolls of the human kingdom of Velmoor, a pact signed centuries earlier promising Malgorath safe passage through the Veil of Ash in exchange for peace. Corvain saw not a treaty but a weakness. He forged a new scroll, one claiming the demons intended betrayal, and placed it before the young King Aldric of Velmoor with trembling, convincing hands.

King Aldric, only nineteen and desperate to prove himself, believed it.

The first strike came at dawn. Human soldiers crossed the Veil and burned three demon villages before Diablo’s forces even understood what was happening. By the time Diablo himself rode out beneath that bruised sky, his youngest sister already lay dead in the ash.

He did not ask questions. He simply answered fire with fire.

That single morning became a hundred years.

Enter Yoichi. Born in a fishing village on Velmoor’s eastern coast, he was no prince, no noble, not even a soldier’s son. His mother, Reiko, was a healer, and his father had died in the war’s eleventh year, one name among thousands carved into the Wall of the Fallen in the capital. Yoichi grew up hearing that wall recited like scripture, and by seventeen he had picked up a blade for the first time, not out of hatred, but out of grief so old it had calcified into purpose.

He was not the only hero the war produced. There was Selin Marrow, a battle mage who could turn her own blood to lightning, and Bram Ostgate, a giant of a man who wielded a hammer forged from a fallen demon’s horn. But it was Yoichi who, twelve years into his service, walked alone into the Screaming Fields and cut down the demon general Vashkar Thorn in single combat, a duel that lasted three days and ended with both combatants too exhausted to lift their weapons, until Yoichi simply refused to fall first.

That victory made him a symbol. Symbols, unfortunately, attract attention from every direction, including the one you least expect.

It was in the ninety-third year of the war that Yoichi met Elenya Vask, a demon scholar who had defected from Malgorath’s court under circumstances no one, not even Diablo, fully understood. She found Yoichi half dead in a ravine after an ambush and, against every instinct her people had bred into her, healed him.

“Your king believes we started this,” she told him, once he could sit up without coughing blood. “My king believes the same of yours. Has it occurred to either side to ask who benefits from a hundred years of both armies bleeding out?”

Yoichi did not trust her. But he did not kill her either, and that hesitation would change the shape of everything that followed.

Elenya led him to records smuggled out of the Cinder Throne’s own archive, records that named Corvain Ashworth, long dead by then, but whose bloodline had prospered enormously from a century of war profiteering. His descendants sat on Velmoor’s council still, growing richer with every year the fighting continued. The war had never been about the Veil of Ash at all. It had been about a forged scroll and the family that never stopped feeding the fire it lit.

Yoichi carried that truth back to his king, and was called a traitor for it.

By the war’s final year, Diablo had grown old in a way demons rarely did, worn thin not by time but by grief stacked on grief. He had buried three more siblings, watched his people’s black glass fields turn to true glass under repeated fire, and he had begun, quietly, to suspect that Elenya’s warnings from years past had been true all along.

When Yoichi crossed the Veil of Ash for the final time, he came not with an army but with Elenya at his side and the forged scroll in his hand.

Diablo met him alone on the plain before the Cinder Throne. Neither man raised a weapon.

“I know what started this,” Yoichi said. “It wasn’t your people. It wasn’t ours. It was one man’s greed, dressed up as prophecy, and neither of us has ever stopped paying for it.”

Diablo looked at the scroll for a long time. Then he laughed, low and hollow. “A hundred years, Yoichi of Velmoor. A hundred years, and the truth was always this small.”

But knowing the truth did not undo it. The magic binding both realms to war, cast in blood a century deep, could not simply be argued away. It had taken root in the Veil itself, feeding on every death on either side, growing stronger with each year it was allowed to continue. Elenya’s research was clear on one final, terrible point: the binding could only be severed by an equal sacrifice from both sides, willingly given, at the exact place the first blood had fallen.

Diablo did not hesitate. “Then let it end with us, and no one else.”

Yoichi thought of his mother, of Selin and Bram, of a wall of names that might finally stop growing. He thought, too, of a strange and unwanted friendship with a demon king he had spent half his life trying to kill.

“Together, then,” Yoichi said. “Not as enemies. As the last two fools this war ever gets to claim.”

They walked together to the scorched hollow where the first village had burned, where Diablo’s sister had died a century before under a sky the color of an old wound. Elenya began the rite, her hands shaking, tears cutting clean lines through the ash on her face as she begged them both to find another way. There was no other way. Diablo pressed his palm to Yoichi’s, demon blood and human blood mingling in the black glass dust, and the Veil of Ash began to scream.

Light tore upward from the hollow, unmaking the century-old binding thread by thread. Diablo felt his own strength pouring out of him like water through open fingers, and beside him Yoichi’s knees buckled, his breath thinning to almost nothing. Neither let go of the other’s hand.

“Tell them,” Diablo rasped, “tell them it was never us.”

“They’ll know,” Yoichi promised. “I’ll make sure they know.”

The light swallowed them both.

When it faded, the hollow was empty. No bodies remained, only two scorched handprints pressed into the black glass, human and demon, palm to palm, forever fused into the ground where the war had been born and where it had finally, impossibly, died.

Elenya knelt alone in the silence that followed, certain the war was over.

She was wrong.

Because far beneath the Cinder Throne, in a vault that had not been opened in a hundred years, something that had been listening through Corvain Ashworth’s original forged scroll, something that had fed on every drop of blood the war had spilled and had never once shown itself, stirred awake for the first time. It had grown fat on a century of hatred. It had no intention of going hungry now that its favorite meal had just vanished.

The black glass beneath Elenya’s feet began, very softly, to crack.